Loom for weaving pile or plush fabrics



Dec.6, 1927. Q 1,651,676

D.. CRABTREE ET AL LOOM FOR WEKVING PIIJE' OR PLUSH FABRICS Fi'led May4, 192 s Sheets-Sheet 1 /Z Q E l M v 4 2/66 6 1 m I l8 /9 v J Dec. 6,1927. V 1,651,676

D. GRABTREE ETAL I LOOM FOR WEAVING FILE PLUSI'L FABRICS Filed May 4,1926 3 Sheets-Sheet 2 Dec. 6, 1927. 1,651,676

' D. CRABTREE ET AL I LOOM FOR WEAVING PI'LE OR-PLUSH'F'ABRICS Filed May4, 1926 3 Sheets-Sheet 5 g zw -m (mm.

ranged to have a notch '6 formed in them manner. This severing of thelooped and this notch receives a flange from an extending rib 3 which isfixed to the bar 3 I and this rib 3 may be the-full length of the bar 3or it may be in sections, preferably it is in sections so that by theremovalv of any section 3 any of its respective hooks 2 may be removedfrom positions as and when desired while the formation of the flange band the rear end b of the hook 2 are such as to permit lateral play ormove ment of the hook 2' as is 'hereinbefore described.

To transmitthe advancing movements to the series of hooks 2, a cam 8 isfixed upon a'motor' shaft 9 of theloom so that it may operate a lever 10which by a rod 11 0perates another lever which. is fixed uponasupporting shaft 13. The lever 12 may cause said shaft 18' to'oscillate while its extending arm 12 will reach forward to be connectedby the rod 14 to the sliding bar 5.

One lever arm 12 is at the end of the loom while a similar arm to thearm 12 is at the opposite end ofthe shaft 13 and near the other end ofthe loom as is well known.

To operate the bar 4 so as to give the tilting action to'the hooks 2,we'havea cam 15 mounted upon'a shaft 16 of the loom the' same beingarranged to operatealever 17 which by a rodl8 anda lever 19 will cause avertical shaft 20 to oscillate. At the upper end of this shaft 20 isfixed a lever 21 which has fixed upon it anoperating bowl or 'projection21 that takes into a slot PI formed crosswise the sliding'bar 4, thusthecam 15' will'cause the hooks totilt or oscillate at the desired timeaccording to the'treading' of hooks 2 backward and forward in mannerwell known.

As is herein'before stated the hooks-21am caused to "advance towards thereed in the loom and are then'tilted so that each one will lay hold ofits respective thread of warp on which the bar 5' is caused to recede sothat the hooked ends a of the hooked bars the top of the body part 2thereof where it 2 will bring with them the threads of warp that havebeen laid hold of by them in order that when receded to the desiredposition, away from the reed, on'thenext treading or operating of saidwarp threads each warp thread is brought down on thefopposite side ofthe hook' to'form a loop over remains or over which it slides during thebeatingjup of'the' weft; As the number of loops upon the hooks 2 areincreased they advance over the body parts 2 until they reach .aposition. that eventually said hooks are caused to pass or'slide throughthe series of loops until'the' cutte'rknife 22 of veach hook 2 isbrought into contactwith the leading loops which it willcut or sever inknown and cut same as desired.

"blades 22 so that each blade has itsup-per edge as the cutting edgethus asthe hooks "are made to advance so will'the lower edge 9' of theblade 22pa-ss beneath the first loop Instead of having the blades 22fixed with their cutting edgesin the upper position shown by Fig. 7, wemay formsaid blades 22 so as tobe easily slipped'or mounted. in positionin the grooves of the'hooks 2 .fas shown by Fig. 10 in which caseholding cross pins 23 are employed to secure the blades in position intheir grooves, while the cuttin ed e g in this case is at the lower edgeof the blade so that thewarp threads are cut at the part 9 as said hooksare made to advance as is hereinbefore described.

' To prevent accumulation of flufi'y or fibrous matter in the rooves ofthe hooks2 within which the bla es 22'are mounted as shown by Fig. 10 wemay form an opening through the bOdypart of the hook as is shown by Fig.'9' and place therein abar'23 which may bereciprocatedso that projecwtions thereon will remove the flufl'y orfibrous substances as these edge9 of the blade. y

' Such being the nature'and object of'our said invention what we claimis:' 1

1. In looms for weaving, pile or lush fabrics, the combination ofaseries 0 pile warp engaging hooks, means for reciprocating said hooks, arackybar extending transversely of and engaging with the stems of thehooks,means for moving the rack bar to' tilt .the hooks aboutax'esextending longitupass below 5 the cutting .dinally of the lengththereof, and bladesmounted upon thebodies'of said hooks.

2. In, looms for weaving. pile or plush fabrics, the combination of aseries of hooks having elongated stems andadapted to'engage thepile orplush warp threads,'means' for, supporting the extending stem parts ofthe hooks, mechanism for effectinglengthwise reciprocation ofsaidho'oks, a' rack bar extending transversely of and supporting therear ends of the stems of the hooks, a.

second movable rack engaging saidfstems, means for operatingthe lastnamedv rack to tilt the hooks, and blades fixed'to'said hooks for cuttinthe pile threads.

3.'In looms or weaving pile or plush fabrics, thev combination of aseries of books ing them, means for actuating said rack bar,-

blades detachably fixed upon the hooks, and means for securing theblades in said hooks.

4. In looms for weaving pile or plush 10 fabrics, the combination of aseries of hooks having elongated stems and adapted to engage the threadsof pile warp, means for supporting said hooks, devices for efiectingreciprocation of said supports and hooks in the direction of the lengthof the latter, 15

means for causing the hooks to tilt inorder to lay hold of the threadsofwarp, and blades mounted upon said hooks and having 7 their cuttingedges'beneath the body parts thereof and between said blades and the i0stems or body parts of the hooks; I

DAVID CRABTREE. THOMAS HENRY CRABTREE.

